scholarly journals Impact of Digital Revolution on the Structure of Nigerian Banks

2009 ◽  
Vol 7 (4) ◽  
pp. 31-39
Author(s):  
A.A. Agboola ◽  
D.O. Yinusa ◽  
O.O. Ologunde
Keyword(s):  
Organizational Structure ◽  
Likert Scale ◽  
The Other ◽  
Central Tendency ◽  
Frequency Distributions ◽  
Digital Revolution ◽  
The Mean

The study examined the extent to which digital revolution has affected the organizational structure of Nigerian banks. Twenty-five banks were selected for the study in south-western Nigeria. Interview was conducted for middle and top level managers and questionnaire was developed and administered to the other staff using a five-point Likert scale to determine the attitudes and opinions of the staff on the effects of digital revolution on the organizational structure of the banks. The mean was used as an indicator of central tendency for quantitative variables that have frequency distributions in the study.

Differentiation of generic extinction rates among Upper Ordovician-Devonian articulate brachiopods

Paleobiology ◽  
1979 ◽  
Vol 5 (2) ◽  
pp. 133-143 ◽  
Author(s):  
Richard R. Alexander
Keyword(s):  
The Other ◽  
Upper Ordovician ◽  
Frequency Distributions ◽  
Extinction Rates ◽  
The Mean ◽  
Temporal Bias

The data on the longevity of genera of articulate brachiopods for the Upper Ordovician-Devonian interval (Boucot 1975) are averaged for the taxa of each order. The generic longevity-frequency distributions form three significantly different clusters. The orthids have the highest mean generic longevity value and display a semi-log survivorship profile that is more convex than the other orders. The spiriferid and strophomenid orders have mean generic longevity values higher than and slopes in the survivorship curves less steep than the pentamerids, rhynchonellids and terebratulids. The appreciable differences in the inferred generic extinction rates for the clusters are attributed to the heterogeneity of the ecologies of the orders. The pentamerids had a proportionately higher number of genera concentrated in narrow-niched reefs wherein higher extinction rates depressed the mean generic longevity of this order relative to the orthids, strophomenids and spiriferids. Enhanced longevity of many offshore (non-reef) genera possibly explains the greater mean generic longevity of the orthids, spiriferids and strophomenids relative to the rhynchonellids and terebratulids which included a proportionately higher number of genera concentrated in nearshore habitats. Alternatively, the depressed mean generic longevity values for the rhynchonellids and terebratulids may reflect systematic oversplitting and temporal bias, i.e., origination and initial diversification of order.

Public users’ perception of Airbnb in Malaysia: should we regulate?

2020 ◽  
Vol 38 (5) ◽  
pp. 627-642
Author(s):  
Zafirah Al Sadat Zyed ◽  
Mun Yee Yong ◽  
Peter Aning Tedong
Keyword(s):  
Case Studies ◽  
Design Methodology ◽  
Public Perception ◽  
International Perspective ◽  
The Other ◽  
Central Tendency ◽  
Content Type ◽  
The Public ◽  
Regulatory Frameworks ◽  
The Mean

PurposeDrawing from available literature and several case studies, this research aims to determine the criteria to be considered in shaping a framework regulating Airbnb. This paper will identify the regulatory frameworks of Airbnb from an international perspective and investigate the public perception on the criteria to be considered in shaping the framework regulating Airbnb. The criteria needed to be considered to regulate Airbnb are suggested accordingly.Design/methodology/approachA quantitative approach based on central tendency statistics was adopted in this research. Questionnaires were administered to the public to investigate the public's opinion on the criteria to be considered to regulate Airbnb. Finally, the criteria to be considered to regulate Airbnb will be determined. By using the mean analysis, this paper will tease out the ranking of the criteria that should be prioritized in shaping the Airbnb regulatory framework.FindingsThe results indicated that the criteria of “permits and safety” and “housing rules enforcement” outweigh the other “taxes” and “rule enforcement” criteria and shall be prioritized by the local authorities during the formation of Airbnb regulations in Malaysia.Originality/valueThis paper provides valuable pointers for policymakers before the expansion of Airbnb and before it becomes more difficult to regulate.

scholarly journals On the conditions under which the "probable errors" of frequency distributions have a real significance

1915 ◽  
Vol 92 (634) ◽  
pp. 23-41 ◽  
Keyword(s):  
Standard Deviation ◽  
Frequency Distribution ◽  
North Sea ◽  
Probable Error ◽  
The Other ◽  
Adequate Description ◽  
Frequency Distributions ◽  
The North ◽  
The North Sea ◽  
The Mean

When we seek the value of a statistical constant, we may either consider the whole aggregate of individuals possessing characteristics of which the constant in question is a function, or we may limit ourselves, from choice or necessity, to the consideration of a ramdom sample of the whole population. The mean height of Englishmen of military age, at a given instant, is a constant which could be determined from a random sample. On the other hand, the mean weight of adult herrings frequenting the North Sea is necessarily to be determined only by a consideration of a sample of the whole population. Statistical constants calculated from a sample give us little information unless we know, at the same time, the manner in which the values may be expected to vary from ramdom sample to ramdom sample, i. e . the frequency distribution of the constant in many samples. The universal custom is to state the "probable error" of the constant, which is equivalent to giving the parameter of the values of the constant in the population as a whole. The parameter-the standard deviation of the frequency distribution-therefore ceases to provide an adequate description of the facts if the frequency distribution differs sensibly from the normal.

scholarly journals DETECÇÃO DE TENDÊNCIAS CLIMÁTICAS DA PRECIPITAÇÃO PLUVIOMÉTRICA EM ANOS ANÔMALOS (MUITOS) SECOS PARA O MUNICÍPIO DE CAICÓ-RN

2020 ◽  
Vol 15 (02) ◽  
pp. 145-161
Author(s):  
Bruno Claytton Oliveira SILVA ◽  
Ranyére Silva Nóbrega ◽  
Ana Maria Jerônimo Soares
Keyword(s):  
Kendall Test ◽  
Data Series ◽  
Central Tendency ◽  
Frequency Distributions ◽  
Palabras Clave ◽  
Historical Series ◽  
Mann Kendall Test ◽  
Total Data ◽  
Kolmogorov Smirnov ◽  
The Mean

O trabalho objetivou analisar a tendência da Precipitação Pluviométrica Acumulada Anual (PPAA), especialmente, em anos categorizados como anômalos secos ou muito secos, para o município de Caicó-RN. Para tanto, foi utilizada a série histórica correspondente ao período de 1911 a 2009, obtida a partir da Rede Hidroclimatológica do Nordeste, pertencente a Superintendência de Desenvolvimento do Nordeste (SUDENE). Ademais, fez-se uso dos seguintes recursos metodológicos e técnicos: Distribuições de Frequência; Medidas de Tendência Central e Dispersão; Testes de Kolmogorov-Smirnov; gráficos Dot-plot; teste T para amostra única (ɑ = 0,05); e, finalmente, o Teste de Mann-Kendall (ɑ = 0,05). Os resultados apontaram que 35,4%, do total de dados série (99 anos), foram considerados abaixo do normal, sendo 15,2% desses identificados como muito secos e 20,2% como secos. Além disso, avaliando-se a variabilidade dos totais precipitados por categoria (muito secos e secos), percebeu-se maior variação dentre os anos muito secos (CV = 37,2%) em relação aos anos secos (CV = 9,9%). Além disto, notou-se que as PPAAs, para ambas as categorias, não apresentaram diferenças significativas em relação à média da série. Finalmente, foram observadas tendências dispares, para as duas categorias em questão, sendo positiva para os anos muito secos e negativa para os anos secos. Palavras-chave: Precipitação Pluviométrica; Estiagem Prolongada; Teste de Mann-Kendall.   DETECTION OF TRENDS CLIMATE PLUVIOMETRIC PRECIPITATION IN YEARS ANOMALOUS (MANY) DRY FOR THE COUNTY OF CAICÓ-RN Abstract The objective of this work was to analyze the trend of annual accumulated Pluviometric Precipitation (PPAA), especially in years classified as anomalous dry or very dry, for the municipality of Caicó-RN. For that, the historical series corresponding to the period of 1911 a 2009, obtained from the Rede Hidroclimatológica do Nordeste, belonging to the Superintendência de Desenvolvimento do Nordeste (SUDENE) was used. In addition, the following methodological and technical resources were used: Frequency Distributions; Measures of Central Tendency and Dispersion; Kolmogorov-Smirnov tests; Dot-plot graphics; T test for single sample (ɑ = 0.05); And finally, the Mann-Kendall test (ɑ = 0.05). The results indicated that 35.4% of the total data series (99 years) were considered below normal, 15.2% of which were identified as very dry and 20.2% as dry. In addition, the variability of precipitated totals by category (very dry and dry) was higher in dry periods (CV = 37.2%) than in dry years (CV = 9.9%). In addition, it was noted that PPAAs, for both categories, did not present significant differences in relation to the mean of the series. Finally, different trends were observed for the two categories in question, being positive for the very dry years and negative for the dry years. Keywords: Pluviometric Precipitation; Dry; Mann-Kendall test.   DETECCIÓN DE TENDENCIAS CLIMÁTICAS DE LA PRECIPITACIÓN PLUVIOMÉTRICA EN AÑOS ANOMALOS (MUCHOS) SECOS PARA EL MUNICIPIO DE CAICÓ-RN Resumen El trabajo objetivó analizar la tendencia de la Precipitación Pluviométrica Acumulada Anual (PPAA), especialmente, en años categorizados como anómalos secos o muy secos, para el municipio de Caicó-RN. Para ello, se utilizó la serie histórica correspondiente al período de 1911 a 2009, obtenida a partir de la Rede Hidroclimatológica do Nordeste, perteneciente a la Superintendência de Desenvolvimento do Nordeste (SUDENE). Además, se hicieron uso de los siguientes recursos metodológicos y técnicos: Distribuciones de Frecuencia; Medidas de Tendencia Central y Dispersión; Pruebas de Kolmogorov-Smirnov; Gráficos Dot-plot; T para una muestra única (ɑ = 0,05); Y, finalmente, la prueba de Mann-Kendall (ɑ = 0,05). Los resultados apuntaron que el 35,4%, del total de datos serie (99 años), fueron considerados por debajo de lo normal, siendo el 15,2% de los identificados como muy secos y el 20,2% como secos. Además, evaluando la variabilidad de los totales precipitados por categoría (muy secos y secos), se percibió mayor variación entre los años muy secos (CV = 37,2%) en relación con los años secos (CV = 9,9%). Además, se notó que las PPAAs, para ambas categorías, no presentaron diferencias significativas con relación al promedio de la serie. Finalmente, se observaron tendencias dispares para las dos categorías en cuestión, siendo positiva para los años muy secos y negativos para los años secos. Palabras clave: Precipitación Pluviométrica; Estiramiento Prolongado; Prueba de Mann-Kendall.

Multi-Center Study of Thromboplastin Calibration Precision – Influence of Reagent Species, Composition, and International Sensitivity Index (ISI)

1993 ◽  
Vol 69 (01) ◽  
pp. 035-040 ◽  
Author(s):  
A M H P van den Besselaar ◽  
R M Bertina
Keyword(s):  
Oral Anticoagulants ◽  
International Normalized Ratio ◽  
The Other ◽  
World Health ◽  
Rabbit Brain ◽  
Sensitivity Index ◽  
Bovine Plasma ◽  
Significant Difference ◽  
The Mean ◽  
International Sensitivity Index

SummaryFour thromboplastin reagents were tested by 18 laboratories in Europe, North-America, and Australasia, according to a detailed protocol. One thromboplastin was the International Reference Preparation for ox brain thromboplastin combined with adsorbed bovine plasma (coded OBT/79), and the second was a certified reference material for rabbit brain thromboplastin, plain (coded CRM 149R). The other two thromboplastin reagents were another rabbit plain brain thromboplastin (RP) with a lower ISI than CRM 149R and a rabbit brain thromboplastin combined with adsorbed bovine plasma (RC). Calibration of the latter two reagents was performed according to methods recommended by the World Health Organization (W. H. O.).The purpose of this study was to answer the following questions: 1) Is the calibration of the RC reagent more precise against the bovine/combined (OBT/79) than against the rabbit/plain reagent (CRM 149R)? 2) Is the precision of calibration influenced by the magnitude of the International Sensitivity Index (ISI)?The lowest inter-laboratory variation of ISI was observed in the calibration of the rabbit/plain reagent (RP) against the other rabbit/plain reagent (CRM 149R) (CV 1.6%). The highest interlaboratory variation was obtained in the calibration of rabbit/plain (RP) against bovine/combined (OBT/79) (CV 5.1%). In the calibration of the rabbit/combined (RC) reagent, there was no difference in precision between OBT/79 (CV 4.3%) and CRM 149R (CV 4.2%). Furthermore, there was no significant difference in the precision of the ISI of RC obtained with CRM 149R (ISI = 1.343) and the rabbit/plain (RP) reagent with ISI = 1.14. In conclusion, the calibration of RC could be performed with similar precision with either OBT/79 or CRM 149R, or RP.The mean ISI values calculated with OBT/79 and CRM 149R were practically identical, indicating that there is no bias in the ISI of these reference preparations and that these reference preparations have been stable since their original calibration studies in 1979 and 1987, respectively.International Normalized Ratio (INR) equivalents were calculated for a lyophilized control plasma derived from patients treated with oral anticoagulants. There were small but significant differences in the mean INR equivalents between the bovine and rabbit thromboplastins. There were no differences in the interlaboratory variation of the INR equivalents, when the four thromboplastins were compared.

Prothrombin Time Standardization: Report of the Expert Panel on Oral Anticoagulant Control

1979 ◽  
Vol 42 (04) ◽  
pp. 1073-1114 ◽  
Keyword(s):  
Prothrombin Time ◽  
Expert Panel ◽  
The Other ◽  
Rabbit Brain ◽  
Calibration Constant ◽  
Freeze Dried ◽  
The Mean ◽  
Point Of Intersection ◽  
And Control ◽  
Standardization Report

SummaryIn collaborative experiments in 199 laboratories, nine commercial thromboplastins, four thromboplastins held by the National Institute for Biological Standards and Control (NIBS & C), London and the British Comparative Thromboplastin were tested on fresh normal and coumarin plasmas, and on three series of freeze-dried plasmas. One of these was made from coumarin plasmas and the other two were prepared from normal plasmas; in each series, one plasma was normal and the other two represented different degrees of coumarin defect.Each thromboplastin was calibrated against NIBS&C rabbit brain 70/178, from the slope of the line joining the origin to the point of intersection of the mean ratios of coumarin/normal prothrombin times when the ratios obtained with the two thromboplastins on the same fresh plasmas were plotted against each other. From previous evidence, the slopes were calculated which would have been obtained against the NIBS&C “research standard” thromboplastin 67/40, and termed the “calibration constant” of each thromboplastin. Values obtained from the freeze-dried coumarin plasmas gave generally similar results to those from fresh plasmas for all thromboplastins, whereas values from the artificial plasmas agreed with those from fresh plasmas only when similar thromboplastins were being compared.Taking into account the slopes of the calibration lines and the variation between laboratories, precision in obtaining a patient’s prothrombin time was similar for all thromboplastins.

Platelet Suruival and Function in Rats with Enhanced Thrombotic Tendency

1985 ◽  
Vol 54 (04) ◽  
pp. 739-743 ◽  
Author(s):  
Federica Delaini ◽  
Elisabetta Dejana ◽  
Ine Reyers ◽  
Elisa Vicenzi ◽  
Germana De Bellis Vitti ◽  
...  
Keyword(s):  
Arachidonic Acid ◽  
Nephrotic Syndrome ◽  
Platelet Function ◽  
Laboratory Tests ◽  
Thrombus Formation ◽  
The Other ◽  
Mean Survival Time ◽  
The Mean ◽  
And Function ◽  
Thrombotic Tendency

SummaryWe have investigated the relevance of some laboratory tests of platelet function in predicting conditions of thrombotic tendency. For this purpose, we studied platelet survival, platelet aggregation in response to different stimuli, TxB2 and 6-keto-PGFlα production in serum of rats bearing a nephrotic syndrome induced by adriamycin. These animals show a heavy predisposition to the development of both arterial and venous thrombosis. The mean survival time was normal in nephrotic rats in comparison to controls. As to aggregation tests, a lower aggregating response was found in ADR-treated rats using ADP or collagen as stimulating agents. With arachidonic acid (AA) we observed similar aggregating responses at lower A A concentrations, whereas at higher AA concentrations a significantly lower response was found in nephrotic rats, despite their higher TxB2 production. Also TxB2 and 6-keto-PGFlα levels in serum of nephrotic rats were significantly higher than in controls. No consistent differences were found in PGI2-activity generated by vessels of control or nephrotic rats.These data show that platelet function may appear normal or even impaired in rats with a markedly increased thrombotic tendency. On the other hand, the significance of high TxB2 levels in connection with mechanisms leading to thrombus formation remains a controversial issue.

Voronoi Analysis of a Soccer Game

2004 ◽  
Vol 9 (3) ◽  
pp. 233-240 ◽  
Author(s):  
S. Kim
Keyword(s):  
Collective Behavior ◽  
Quantitative Assessment ◽  
The Other ◽  
Analysis Method ◽  
Random System ◽  
Soccer Game ◽  
Voronoi Polygons ◽  
The Mean

This paper describes a Voronoi analysis method to analyze a soccer game. It is important for us to know the quantitative assessment of contribution done by a player or a team in the game as an individual or collective behavior. The mean numbers of vertices are reported to be 5–6, which is a little less than those of a perfect random system. Voronoi polygons areas can be used in evaluating the dominance of a team over the other. By introducing an excess Voronoi area, we can draw some fruitful results to appraise a player or a team rather quantitatively.

PENGARUH ABILITY, BENEVOLENCE DAN INTEGRITY TERHADAP TRUST, SERTA IMPLIKASINYA TERHADAP PARTISIPASI PELANGGAN E-COMMERCE: STUDI KASUS PADA PELANGGAN E-COMMERCE DI UBM

2017 ◽  
Vol 2 (2) ◽  
pp. 155-168 ◽  
Author(s):  
David Wong
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Structural Equation Model ◽  
Structural Equation ◽  
Likert Scale ◽  
Equation Model ◽  
The Other ◽  
Predictor Variables ◽  
Analysis Method ◽  
Other Hand

This research aims at analyzing (1) the effect of vendor’s ability, benevolence, and integrity variables toward e-commerce customers’ trust in UBM; (2) the effect of vendor’s ability, benevolence, and integrity variables toward the level of e-commerce customers’ participation in Indonesia; and (3) the effect of trust variable toward level of e-commerce customers participation in UBM. This research makes use of UBM e-commerce users as research samples while using Likert scale questionnaire for data collection. Furthermore, the questionnaires are sent to as many as 200 respondents. For data analysis method, Structural Equation Model was used. Out of three predictor variables (ability, benevolence, and integrity), it is only vendor’s integrity that has a positive and significant effect on customers’ trust. On the other hand, it is only vendor’s integrity and customer’s trust that have a positive and significant effect on e-commerce customers’ participation in UBM. Keywords: e-commerce customers’ participation, ability, benevolence, integrity

Solid, slightly soluble phosphorus compounds as nutrient source in activated sludge treatment of forest industry wastewaters

1997 ◽  
Vol 35 (2-3) ◽  
pp. 131-138 ◽  
Author(s):  
Pirjo-Riitta Rantala ◽  
Hannu Wirola
Keyword(s):  
Activated Sludge ◽  
The Other ◽  
Phosphorus Compounds ◽  
Forest Industry ◽  
Phosphorus Concentration ◽  
Nutrient Source ◽  
Sludge Treatment ◽  
Grain Sizes ◽  
Soluble Phosphorus ◽  
The Mean

The aim of the study was to determine if solid, slightly soluble compounds can be used as nutrient source in activated sludge treatment plants instead of liquid phosphoric acid. Four different solid materials were tested in lab-scale solubility tests to find compounds which are least soluble. Two materials were chosen for further studies: apatite and raw phosphate. The use of apatite and raw phosphate as nutrient source was studied in lab-scale activated sludge reactors along with a control reactor where phosphorus was added in liquid form. The phosphorus dosage, measured as elementary phosphorus, was the same for all three reactors. The reactors were fed with pre-clarified chemi-thermomechanical pulp mill (CTMP) wastewater. There were no significant differences in the reductions of organic matter between the three reactors. The mean effluent concentration of total phosphorus was 3 mg P/l in the control reactor and less than 1 mg P/1 in the other two reactors. The soluble phosphorus concentration was more than 2 mg P/l in the control reactor and less than 0.5 mg P/l in the other two. Apatite was an even better nutrient source than raw phosphate. Further lab-scale tests were conducted using two different grain sizes of apatite. No significant differences were found between the studied grain sizes (<0.074 mm and 0.074 mm-0.125 mm). Apatite was then used in full-scale at a CTMP-mill two different times. The experiments showed that the mean concentrations of phosphorus can be reduced radically by using apatite as a nutrient source instead of liquid phosphorus. Solid phosphorus compounds are a viable alternative to reduce the phosphorus load from forest industry wastewater treatment plants.

Sign in / Sign up

Export Citation Format

Share Document